Up in the Air: 5 Amazing Treehouses that Combine Functionality with Awe-Inspiring Design

While it may engender warm feelings of childhood wonderment, the notion of treehouses also addresses very grown-up concerns: sustainability, ecology, being in harmony with nature, self-sufficiency, and breaking free from the daily, urban grind of city life. For a selection of inspiring treehouses that function as high-perched homes, we recommend picking up a copy of